自动驾驶车辆的供电管理系统以及自动驾驶车辆
By employing a dual-power redundant power supply management system in autonomous vehicles, and utilizing fault isolation units and signal monitoring units to achieve redundant power supply management and fault isolation, the problems of low integration and complex spatial layout are solved, thereby improving the reliability and safety of the power supply management system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING SANKUAI ONLINE TECH CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-07-17
AI Technical Summary
The existing power supply management systems for autonomous vehicles have low integration and complex spatial layout, making it difficult to achieve efficient dual-power redundant power supply and resulting in poor fault isolation, which affects driving safety.
A dual-power redundant power supply management system is adopted, which connects the main power supply and the backup power supply through the first and second power supply branches respectively. The system utilizes a fault isolation unit and a signal monitoring unit to achieve redundant power supply management and fault isolation, including fault signal monitoring, fuses and logic self-test units to ensure system reliability.
It improves the integration of the power supply management system, reduces space occupation, ensures timely isolation of faults in the event of power failure, and guarantees the power supply reliability and safety of autonomous vehicles.
Smart Images
Figure CN224520749U_ABST
Abstract
Claims
1. A power supply management system (100) of an autonomous vehicle, characterized by, include: The first power supply branch is used to connect the backup power supply (101) and the backup system (102) so that the backup power supply (101) supplies power to the backup system (102); The second power supply branch is used to connect the main power supply (103) and the main system (104) so that the main power supply (103) supplies power to the main system (104). The second power supply branch is connected to the first power supply branch through the first fault isolation unit (105). The first fault signal monitoring unit (106) is connected to the first power supply branch and the first fault isolation unit (105) respectively. The first fault signal monitoring unit (106) is used to respond to the output signal of the backup power supply (101) and control the opening and closing state of the first fault isolation unit (105).
2. The power supply management system (100) of an autonomous vehicle according to claim 1, characterized in that, The power supply management system (100) of the autonomous vehicle further includes a backup fault handling unit (107), which is connected to the first fault signal monitoring unit (106) and the first fault isolation unit (105) respectively. The first fault signal monitoring unit (106) is also used to transmit the output signal of the backup power supply (101) to the backup fault handling unit (107). The backup fault handling unit (107) is used to respond to the output signal of the backup power supply (101) and control the opening and closing state of the first fault isolation unit (105).
3. The power supply management system (100) of an autonomous vehicle according to claim 1, characterized in that, The second power supply branch includes a second fault isolation unit (108). The first fault isolation unit (105) is connected between the second fault isolation unit (108) and the main system (104) at one end near the second power supply branch. The power supply management system (100) of the autonomous vehicle also includes a second fault signal monitoring unit (109). The second fault signal monitoring unit (109) is connected to the second power supply branch and the second fault isolation unit (108) respectively. The second fault signal monitoring unit (109) is used to respond to the output signal of the main power supply (103) and control the opening and closing state of the second fault isolation unit (108).
4. The power supply management system (100) of an autonomous vehicle according to claim 3, characterized in that, The output signal of the main power supply (103) includes the output current, and the second fault signal monitoring unit (109) is also used to control the second fault isolation unit (108) to be in the disconnected state in response to the output current of the main power supply (103) being greater than the first current threshold.
5. The power supply management system (100) of an autonomous vehicle according to claim 4, characterized in that, The second fault signal monitoring unit (109) is also used to control the first fault isolation unit (105) to be in a disconnected state in response to the output current of the main power supply (103) being greater than the second current threshold, wherein the second current threshold is greater than the first current threshold.
6. The power supply management system (100) of an autonomous vehicle according to claim 3, characterized in that, The power supply management system (100) of the autonomous vehicle further includes a backup fault handling unit (107), which is connected to the second fault signal monitoring unit (109) and the second fault isolation unit (108) respectively. The second fault signal monitoring unit (109) is also used to transmit the output signal of the main power supply (103) to the backup fault handling unit (107). The backup fault handling unit (107) is used to respond to the output signal of the main power supply (103) and control the opening and closing state of the second fault isolation unit (108).
7. The power supply management system (100) of an autonomous vehicle according to claim 1, characterized in that, The first power supply branch includes a first electronic fuse (110) for controlling the on / off state of the first power supply branch according to the current of the first power supply branch, and the second power supply branch includes a second electronic fuse (111) for controlling the on / off state of the second power supply branch according to the current of the second power supply branch.
8. The power supply management system (100) of an autonomous vehicle according to claim 1, characterized in that, The power supply management system (100) of the autonomous vehicle further includes a logic self-test unit (112), which is connected to the backup power supply (101) and the first fault isolation unit (105) respectively. The logic self-test unit (112) is used to control the backup power supply (101) to output different voltages to change the current direction between the backup power supply (101) and the main power supply (103), and to control the first fault isolation unit (105) to be in an open state. The first fault isolation unit (105) is also used to perform fault detection based on the opening and closing state of the first fault isolation unit (105) in different current directions. The opening and closing state includes an open state and a closed state.
9. The power supply management system (100) of an autonomous vehicle according to claim 1, characterized in that, The power supply management system (100) of the autonomous vehicle also includes a main power supply fault monitoring unit (113) connected to the main power supply (103) for monitoring faults in the main power supply (103).
10. An autonomous vehicle, comprising: The vehicle controller includes a main power supply (103), a backup power supply (101), a main system (104), a backup system (102), and a power supply management system (100) for an autonomous vehicle as described in any one of claims 1-9.